Mortising machine



Nov. zo, 192s.. 1,692,580l

R. SANCHEZ MORTISING MACHINE Filed Aug. 23, 1927 Patented Nov. zo, i928.

UNITED STATES REYNALDO SNCHEZ, OF MONTEREY, MEXICO.

MORTISING MACHINE.

Application'led August 23, 1927. Serial No. 214904 This inventionrelates to improvements in chiseling machines adapted for use in themanufacture of Wooden furniture and the like, especially in cases Wherethe product-ion is limited which does not permit of expensive laborsaving single purpose machines.

The object of the invention is to provide a chiseling machine of novelconstruction and arrangement of parts, hereinafter more fully described,claimed and illustrated in the accompanying drawing in which:

Fig. 1 shows a top plan lview of my improved chiseling machine.

Fig. 2 shows a front elevational vieW thereof.

Fig. 3 shows an enlarged detail perspective View of the release memberas embodied in my improved machine.

As here embodied my improved chiseling machine comprises a table 10, orstand, provided With a base element 11. The Worm 12 is attached to theshaft 13 rotatively mounted in the bracket 14 attached to the table 10.The shaft 13 is further rotatively mounted in a bracket, not shown inthe accompanying drawing, as a lmeans of rotatively supporting the saidshaft 13 Which has attached thereto, a pulley, gear or the like, orwhich may be directly attached to an electric motor, as a means ofrotating the shaft 13 so as to drive my improved machine.

The Worm wheel 15 meshes with the Worm 12, and is attached to thetubular member 16', mounted on the shaft 16 rotatively mounted in thebrackets 17 and 18 attached to the stand 10. The disc member 19 isattached to one extremity of the shaft 16, and has formed or cut thereinavtransverse groove 20 provided With an enlarged inner portion toreceive the enlarged head of the pin 21. The rod 22 is pivotallyattached at one extremity to the pin 21. The rod 22 is secured to thepin 21 which is also secured in the transverse groove 20 by the nut 23threadedly attached to the pin 21. TheV above described construction issuch as will permit the rod 22 to be attached to the disc member 19 soas to increase or decrease the stroke of the rod 22. The rod 22 ispivotally attached, at its extended extremity, as at 24, by a pin,secured to the lug element 25 of the work table 27, by the nut 26threadedly attached to the pin 24. The Work table 27 is slidably mountedin the supporting member 28. The supporting member 28 is slidablymounted in the The clutch member is attached to thev abovementioneoshaft 16, and is provided with 4a tapered rim adapted toreceive the tapered periphery of the clutch engaging member 41. Theclutch engaging member 41 is slidably mounted on the tubular member 16,and is 'provided with a serrated axial aperture adapted to engagesimilar serrations formed in the tubular member 1G. The lat terdescribed construction is such as Will permit the tubular member 16 torotate the clutch engaging member 41. The arm 42 is pivotally attached,as at 43, to the bracket 14, and has attached intermediate thereto aroller 44 adapted to engage ina coaxial groove 45 formed in the clutchengaging member 41. The tension spring 4G is attached to the freeextremity of the arm 42, and to the tabl-e 10 so as to normally hold theclutch enga-ging member 41 in contact with the clutch member 40. Theabove described construction is such as Will permit the rod 22 tooseillate the Work table 27 and which will permit the hand Wheel 31 toraise or lower 4 the Work table 27.

f The rod 41 is attached to the free extreml ity of the arm 42, and tothe extended extremity of the lever 42 attached to the shaft 45. Theshaft 45 is rotatively mounted in the brackets 46 and 47 attached to thetable 10. The shaft 45 is provided With a down- Wardly extended portion48 adapted to be engaged by the finger 49 attached to the re kleasemember' 50 secured to the rod 34. The 'above described construction issuch as Will permit the finger 49, when the cutting tool has completed aWorking stroke or assumed an extended position to engage the extendedportion 48 of the shaft 45', so as to disengage the clutch engagingmember 41 with the clutch member 40, as a means of stopping theoscillating of the Work table 27. The shaft 45 has an enlarged end 44ELfor manual moving of the shaft for accomplishing the same purposeWhenever' desired.

The rod 34 is slidably mounted in the brackets 35 and SGattached to thetable 10, and is provided With an axial aperture adapted to receive thecutting tool 37 provided with a cutting edge at its extremity. Thecutting tool 37 is securely held in the aperture formed in the rod 34 bythe set screw `3&.tlujeadedl attached to the rod 34. Thecutting tool 3is urged forward so as to engage and cut the work which is placed on thework table 27 by the expansion spring 39 positioned in the* bracket 35at the rear of the rod 34.

The eccentric rod 51 is attached, at one extremity, as at 52 by abo1t,screw or: the like,l

at or near the periphery of the worm wheel 15. The eccentric rod 51;ispivQtallyMatf., tached, as at 53,1)ya pin, or `the 1ike,.to the rod 54slidablymounted in the bracket 551- atf taclied to the table 10.`Tbebellcrank 5G-is pivotaily attached as at 57, by a pin, or ,the-

like, to the table V10; andis lleldnfengagement rwith the free extremity`of Ltherodel,`

and in. engagement .with the teeth iormed or cut inthe release member5() by the curved spring` 59 attachedatone extremity aS at G0 by a pin,or the like, to the table .10.- The above described construction issuchaswi11;

permit theb'ell crank, 56 toedisengageqthe teeth 58 when the shaft 16 isrotated, asa

. means of allowing the compression spring 39 to function, asherembefore.described and set `forth.

The release` member 5() is provided withy an apeitureadaptedto receivethe rod 34,` :and has attached 'thereto a cap 61. The release member 50is fixed to the rod34 b the-collarattached tothe saidspindle. he releasemember 5() is further supported by the rods 63 and 64 attached thereto,and to the sup-` porting member 65 secured to ktherod 34 by the collar66 attached thereto i In `Operation of thezdevice, .the shaft-13 turns,causing the worms to turn and the tu-y bular member 16. The turning. ofworm wheell operatesthe rod Q1 :for releasing the memberiOso thatthe rod34 isuriged forward 40 by the springr 39 to a position as determined bya collar 34a fixed on the rod and striking the braeket 36;uNormallyfrotation of the tubular member 16 is transmitted to shaft 16bar oscillating the table 27, but when the rod 34 45 moves...for-ward,`finger., 49 strikes portion 48 for disengagingr the clutch 40, 41 andstopping the table ,.727 i from. .reeiprocatinfn Then -t-he rod, must`be manually movec'to retracted position, andgimmediately the table27ref, 50

V.In--a chiselingmachine, a-rod Vslide,-

bly mounted and `adapted .for `holdiga 60 cuttingr tool, a means ,.forrurging.l the rod forward for operatin the (Hitting:

tool, a release member .attache o-the rod and formed-twith teeth ononeside, a bell .crank pivotally mounted 'antiwar-ranged: ,for.,.noI;- 65

mally` engagingthe seid tleeth` for restraining forward,motionfofthe`rod,-ajsec,ond rod en, gaging against the said/bell-crank, a third nodhinged` to` the second lrod,.-and,Yeccentritally connected with.V adriverwheellfor motion to4 70 moyethe belll crank; andQrelease' thecutting` toetY l nature.

REYNALDO SNCHEZ.

In testimonywhereof lI haya atlltedinysig--`

